I plugged it in and watched the display, so if it was cold at the surrounding temperature, it was instantaneously around 2 ° C
Although I understood that going down, I measured it in terms of conversion, so there is no particular problem.

If I had not seen the review that "The case was tight and broke", I was also screw-folding. It seems as tight as it seems that it will not open due to the balance with the rolling stop rubber. On the other hand, other thermometers of the series bought at the same time are loose in case of the same type, not forming the case. However, once you can open up the case, it seems that you can somehow get hurt. Besides that, I would like you to stop strange rings about the case. There are so-called cases, it can not be used for storage after purchase. Is it for display sale? As a thermometer, it is worthwhile with sensitivity and accuracy that is quite reasonable for the price.

As a result of testing at 4 ° C, 30 ° C and 60 ° C, each error is around ± 1 ° C, and this size (15 cm) · As a product at this price, we are generally satisfied. However, since the scale lines are slightly thick, the visibility when reading the temperature is slightly bad impression.